A4910 datasheet(7/36 Pages) ALLEGRO

7 / 36 page

Automotive 3-Phase MOSFET Driver

A4910

Allegro MicroSystems, LLC

115 Northeast Cutoff

Worcester, Massachusetts 01615-0036 U.S.A.

1.508.853.5000; www.allegromicro.com

Gate Output Drive (continued)

Turn-Off Propagation Delay

tP(off)

Input change to unloaded gate output change

(see figure 5)

140

Turn-On Propagation Delay

tP(on)

Input change to unloaded gate output change

(see figure 5)

130

Propagation Delay Matching

(Phase-to-Phase)

∆tPP

Same phase change, DT[6..0] = 0

–

Propagation Delay Matching

(On-to-Off)

∆tOO

Single phase, DT[6..0] = 0

–

Propagation Delay Matching

(GHx-to-GLx)

∆tHL

Rising to rising edges, falling to falling edges,

DT[6..0] = 0

–

Logic Inputs and Outputs

Input Low Voltage

VIL

RESETn pin

–

0.2 VDD

All other logic pins

–

0.3 VDD

Input High Voltage

VIH

0.7 VDD

––

Input Hysteresis

VIhys

RESETn pin

200

350

–

All other logic pins

250

500

–

Input Pull-Up Resistor

RPU

STRn

kΩ

Input Pull-Down Resistor

RPD

COASTn, RESETn, SCK, SDI, AHI, ALO, BHI,

BLO, CHI, and CLO pins

kΩ

Output Low Voltage

VOL

IOL= 1 mA

–

0.2

0.4

Output High Voltage2

VOH

IOL = –1 mA

VDD – 0.4 VDD – 0.2

–

Output Leakage (SDO pin)2

ISDOlkg

0 V < VSDO < VDD, STRn = 1

–1

–

μA

Logic Inputs and Outputs Dynamic Parameters

Reset Pulse Width

tRST

0.2

–

4.5

μs

Reset Shutdown Time

tRSD

–

μs

Clock High Time

tSCKH

A in figure 2

–

Clock Low Time

tSCKL

B in figure 2

–

Strobe Lead Time

tSTLD

C in figure 2

–

Strobe Lag Time

tSTLG

D in figure 2

–

Strobe High Time

tSTRH

E in figure 2

300

–

Data Out Enable Time

tSDOE

F in figure 2

–

Data Out Disable Time

tSDOD

G in figure 2

–

Data Out Valid Time from

Clock Falling

tSDOV

H in figure 2

–

Data Out Hold Time from

Clock Falling

tSDOH

I in figure 2

–

ELECTRICAL CHARACTERISTICS (continued) Valid at TJ = –40°C to 150°C, VDD = 5 V, VBB = 7 to 50 V; unless otherwise

specified

Characteristic

Symbol

Test Conditions

Min.

Typ.

Max.

Unit

Continued on the next page…

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